Dynamic motor.



f), R. HELD DYNAMIC MOTOR.

APBLIOATIOH nun 00127, 1908. RENEWED mm, 25, 1911.

@Qfifig Patenwd June 13, 19111,

L Win.

amnmrot .To all whom tt may concern.-

CHARLES R. HELD, OF STANFORD, ILLINOIS.

DYNAMIC Moron.

Application filed October 27, 1908, Serial No.

' Be it known that I, CHARLES It. Hate, a

'citizen of the United States, residing at Stanford, in the county ofMcLean and State of Illinois, have invented certain new and usefulImprovements in Dynamic Motors, of which the following is aspecification, reference being had therein to the accompanying drawing.

This invention relates to a thermo-dynamic motor of the two-cycle typeadapted for use in a motor vehicle, boat or the like in either avertical or horizontal position.

The primary object of the invention 1s to provide a motor of the classspecified with a rapid exhaust means to avoid back pressure into theexplosion cylinder or chamber and prevent modification or interferencewith the regular stroke of the piston and also thoroughly liberate theburned gas from the explosion cylinder with advantages in the successiveexplosion of incoming fresh charges of gas into the said cylinder.

A further object of the invention is to provide a muffler in connectionwith the exaust means of a motor of the class specified and to utilizethe exhaust as a motive means for a cooling fan for the explosioncylinder and also to cut out the exhaust from the mufiler.

With these and other objects and advantages in view the inventionconsists in the construction and arrangement of the several parts whichwill be more fully hereinafter specified in preferred form.

In said drawings :Fi re I is a section through a motor embody ng thefeatures of the invention. Fig. II is a transverse section on the line2-2 of Fig. I. Fig. III is a section on the line 3'3.of Fig. I. Fig. IVis a detail elevation of a part of the mechanism. Fig. V is a detailsideelevation of themufiler conduit connection plate, and Fig. VI is an endelevation of the. auxiliary U-shaped ports secured to said plate.

The numeral 5 designates a crank casing,

preferably of cylindrical form and of suitable dimensions. Throu h thecenter of this casing extends a shaft 6) having a crank Specification ofLetter! Patent. I

Patented June 13, 1911.

Medea. Renewed March 25, 1911. Serial No. 818,884.

arm (7) and constituting a crank shaft. The crank casing forms a chamberfor the reception of the motive agent such as a suitable mixture of ahydrocarbon product and air, the motive agent in properly usable formbeing fed to the crank casing by a pipe (8) connecting with a suitablesource of supply and having a butterfly or other suitab e controllingvalve (9-) therein opening in the direction of the casing but resistingopening movement in the op osite direction.. Continuing from the crancasin (5) is a piston cylinder (10) of elongated orm to provide anexplosion chamber (11).v surrounded by a water jacket (12) with opposedpipes (13) and (14) controlling the supply and exhaust of the coolingliquid to the said jacket. The motor, as shown, may be disposed eithervertically or horizontally, or the cylinder (10) may be above the crankcasing or at one extremity of the same, and in the end'or head positethe said. crankfcasing a sparkmg p ug (16) is centrally arranged asshown. A piston (17) is mounted in the cylinder (10) and has a pistonrod '(18) movably connected to one end thereof and also movably attachedto the end of the crank arm A feed port (19) is formed I in the cylinder(10) in suitable position and connecting therewith and" the chamber.

formed by the crank casing is a by pass or feed pipe (20) having a feedregulating or butterfly valve (21) provided with an exteriorly locatedoperatin lever (22). In

a portion of the cylinder 10), opposite the port (19) is an elongated oroblong exhaust port (23) which is so situated that it is opened beforethe piston 'completesits receding stroke, and at such time that the exlosion chamber (11) will have been fully re ieved of the exploded chargeprior to the admission thereto of, a fresh charge of the motive a cut. v

' It has een found that the most efi'ective operation as to the exhaustensues when the plston has reached a six-eighths limit of its recedingstroke and thus give ample time for the explosion chamber to becomeentirely clear of each exploded charge or exhaust,

articularly in view of the use of the en- Parged oblong exhaust ort(23). The exhaust is also so contro led when liberated from theexplosion chamber that backing up of the same, or the institution ofback pressure in the said chamber is avoided, and in accordance with thefeatures of the invention, the pressure of the exhaust is utilized as amotive means for driving a cylinder cooling or anization. Further, theexhaust is control able as to its outlet particularl with res ect to amufiler connection or con uit.

rectangular or oblong casing (24) is bolted or otherwise fastenedagainst the outer side of the cylinder (10) over the port (23) andtherein a bladed wheel (25) is rotatably mounted and held by a shaft(26) extending transversely throu h the casingand carrying a pulley (27)ver the wheel (25) on the top of the casing, which forms an enlargedduct or passage, is a hood or housing (28) and secured against the'hoodis a plate (29) having two openings (30) therein to which are fitted theends of auxiliary U-shaped ports (31) having a suitable connection orunion (32) at the elbow for a mufiler conduit (33). Against the plate(29) a cut-out means for the exhaust is provided and consists of a valve(34) fulcrumed, as at 35, and having an exterior arm (36) securedthereto and provided with an operating rod or analo 'ous device (37).The valve performs a dua function and is operative to open or close abottom outlet opening (38) or the auxiliary ports (31). When the valveis in the position shown by Fig. I, the outlet (38) is open and theports (31) closed, and the exhaust is then liberated without passing onto the muffler or has a freer escape to render the motor more eificientas a power means when used in driving a motor vehicle upgrade. Whenexhausting during level travel, the valve is turned down to close theoutlet (38) and open the auxiliary ports (31).

Above the hood or housing (28) a support (39) is mounted and has anupright (40) terminating in an interiorly screw threaded casing (41)centrally intersected by a bearing arm (42) formed with a center recess(43) in the end, on which casing (41) is mounted, as shown by Fig. III.A fan shaft (44) carrying a companion casing (45) exteriorly screwthreaded to fit in and become secured to and form a part of the casing(41), is provided with an outer conical end (46) to engage the recess(43) and reduce friction and avoid end thrust of the shaft (44), thelatter rotating in the center of the casing (45) and having on its innerend a suitable fan (47) in proximity to the cylinder (10) and of suchdimensions as to be effective as a cooling medium with relation to saidcylinder at the point of greatest heat generation. Fixed on the shaft(44) within the housing formed by the interfitting companion casings(45) and (41) by a set screw (48) is the hub (49) of a plurality ofweight arms (50) acting centrifugally as a momentum wheel to constantlymaintain a uniform rotation of the fan (47) and materially acceleratethe speed of said fan, and thereby form an effective speed auxiliary tothe wheel (25) constituting the prime actuating means for the shaft(44). This shaft (44) has a band pulley (51) fixed thereon, and trainedthereover, and over the pulley (27 is a belt (52) which is turned afterleaving the pulley (27 to engage the pulley (51) in new of the fact thatthe pulleys (27 and (51) are disposed at angles to each other.

Assuming the crank casing to be fully char ed with the motive agent andthe piston 17) at the limit of its receding stroke, the port (19) willbe cleared and the motive agent will be permitted to pass through feedpipe (20) into the explosion chamber ahead of the piston ,(17) and willbe instantly compressed by the' latter and at a proper time the sparkingplug will become electrically active and ign te the compressed chargeand drive the piston back, clearing the exhaust port (23) to liberate orexhaust the exploded charge and at the same time compress the motiveagent in the crank casing to a certain extent with advantage in chargingthe explosion chamber. The impetus given the crank arm (7) will overturnshaft (6) and the successive forward and backward strokes of the piston(17) will become regular and the explosions or ignition of successivecharges uniform. The crank casing will be recharged at regular intervalswith the mo tive agent from a source of Sn ply or suitable mixing meansand the piston will be cushioned thereby and the disadvantages of dead'center overcome. The exhaust passing from the explosion chamberactuates the wheel (25) and the latter in turn rotates the shaft throughthe means heretofore explained and the fan (47 is set in motion to coolthe cylinder. The exhaust after passing the wheel (25) is freed ineither one of the two ways as heretofore specified.

It will be understood that when the motor is installed in a motorvehicle, the operating means for the valves (21) and (34) will belocated adjacent to or render operation from the drivers seat, andfurther the dimensions of the several parts may be changed at will tovary the horse-power of the motor.

What is claimed is In a motor of the class described, the combinationwith an explosion chamber having an exhaust port, a duct communicatingwith said port, of driving means positioned therein operated by theexhaust pressure, a supporting bracket positioned above said duct andcomprising an arm having an end re- I In testimony whereof I hereuntoaifix my cess of conical form, a shaft having a conical signature inpresence of two Witnesses.

end engaging said recess, a casing carried by said arm, said casingcomprising a plurality CHARLES HELD of sections, one of said sectionsthreaded into Witnesses: the other section, and momentum means se- F. H.LIGHTHART,

cured to said shaft Within said casing. J. F. HAMMOND.

